github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-22 06:01:53 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

usb: gadget: f_uac2: Fix incorrect setting of bNumEndpoints

Browse Source 
Currently afunc_bind sets std_ac_if_desc.bNumEndpoints to 1 if
controls (mute/volume) are enabled. During next afunc_bind call,
bNumEndpoints would be unchanged and incorrectly set to 1 even
if the controls aren't enabled.

Fix this by resetting the value of bNumEndpoints to 0 on every
afunc_bind call.

Fixes: eaf6cbe099 ("usb: gadget: f_uac2: add volume and mute support")
Cc: stable <stable@kernel.org>
Signed-off-by: Prashanth K <quic_prashk@quicinc.com>
Link: https://lore.kernel.org/r/20241211115915.159864-1-quic_prashk@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Prashanth K 2024-12-11 17:29:15 +05:30 committed by Greg Kroah-Hartman
parent b9711ff7cd
commit 057bd54dfc
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/usb/gadget/function/f_uac2.c
View File

@ -1185,6 +1185,7 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
uac2->as_in_alt = 0;
}
std_ac_if_desc.bNumEndpoints = 0;
if (FUOUT_EN(uac2_opts) || FUIN_EN(uac2_opts)) {
uac2->int_ep = usb_ep_autoconfig(gadget, &fs_ep_int_desc);
if (!uac2->int_ep) {